Mobile phone cover plate glass capable of meeting requirements of 5G communication and 3D compression molding and process method

Abstract

The invention discloses mobile phone cover plate glass capable of meeting requirements of 5G communication and 3D compression molding and a process method. The mobile phone cover plate glass is alkali-aluminum silicate glass, and comprises SiO2, B2O3, Al2O3, an alkali metal oxide R2O, an alkaline earth and divalent metal oxide RO, a clarifying agent and a surfactant. The process method comprises the steps of matching material melting, primary compression molding, three-step method chemical strengthening treatment, and obtaining of the mobile phone cover plate glass. The dielectric constant ofthe mobile phone cover plate glass is only 6.35-6.43 and is reduced by 10-20% compared with that of existing mobile phone cover glass so that the loss of 5G high-frequency transmission signals can bewell reduced; the softening point temperature of the glass is lower than 709 DEG C and is reduced by 175 DEG C or above compared with that of the existing mobile phone cover plate glass; therefore, surface oxidation and losses, caused by primary compression molding of the cover plate protective glass, of the surface of a mold can be reduced, the service life of the mold is prolonged, and the surface quality of the glass is improved.

Description

technical field [0001] The invention belongs to the technical field of silicate glass, and relates to a mobile phone cover glass and a process method that meet 5G communication and 3D compression molding, and specifically relates to a glass material with high wave penetration and low dielectric loss that can meet the needs of 5G communication. The chemical composition of the mobile phone 3D cover glass can meet the low softening point and high strength of one-time 3D compression molding, and the glass of the present invention is suitable for chemical strengthening treatment. Background technique [0002] With the rapid development of communication technology, various advanced communication technologies continue to emerge, providing human beings with various forms of information to meet people's production and living needs. In 1837, Morse's telegraph communication experiment was successful. In 1876, Bell invented the telephone. Therefore, analog telephones have been used for ...

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Problems solved by technology

[0020] Aiming at the insufficient hot-bending forming process of 3D cover protection glass and the problems of high softening point temperature and high dielectric constant of existing high-strength aluminosilicate glass varieties, the present invention provides a high-transparency glass that can meet the needs of 5G communication. Wave, low dielectric loss glass material, and can meet the chemical composition of 3D mobile phone cover glass with low softening point and high strength for one-time 3D compression molding, and is suitable for chemical strengthening treatment

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